Signal



1.;P. KE LLEYi SIGNAL, APPLICATION FILED .IUNE |2| 1920- 1,368,400. Patented Feb. 15, 1921.

JOSEPH P. E LEY; ornmn, xANsns.

SIGNAL- To all whom it may 210mm i a Be it known that I, JOSEPH KELLEY,

acitizen of theUnited States, residing at? Meade, in the county oflMeade and Stateiof Kansas, have invented certain new anduseful Improvements in Signals, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in signals and has relation more particularly to a device of thisgeneral chartc ter of an audible type, andit'issan object of the invention to provide a novel and ,im-

proved device of this general character which is adapted to automatically operate to indicate low or lowering'pressure' of air orother fi-llld or gas under confinement.

Another object of the invention is to provide a novel and improved device of this.

general character particularly adapted for use in connection with. awpneumatic tire or other inflatable body and which operates automatically to indicate when the pressure within the tire or other body islowering-orj has become low andwhich reduction of pres-k suremay be caused by punctures, pinches K orbore of an elongated rubber tube l0.v The inner/end of the tube 10 is ,definedby an outstanding; annular flange l1 seating upon "the upper or outer'fa'ceiofthe partition or disk 3. The-flange 11 is clamped to the para and'the like. 1 s s Anadditional object of the invention is to provide a novel and; improved devicelof this general character which alsomay'be employed with facility in connectioniwith a pneumatic tire or other inflatable body to sound a signal" when the pressure within said tlre or bodyis sufficient for safe use.

The invention consists in the details of,

construction and -in the combination and arrangement of the severalparts of my in as will be hereinafter more fully set forth. The novel'features' of my invention will" hereinafter be definitely claimed In order that my invention maybe the better understood, I will now proceed to de scribe the same with reference to the accom- 1 panyin'g; drawings, wherein Figure 1 is a view partly in elevation and partly in section illustrating a signal constructed in accordance with an embodi ment of my invention and tion, and

Application'filed e 12, 1920.. Serial No. 388,470.

in applied posi- Specification statement, at te F '1 5-, 1921.

Fig. 2 is transverse sectional view taken, substantially through the'eupper portion of thedevice as illustrated in Fig. 1.

- As disclosed in the accompanying drawings,"1 denotes a valve stem'of a comm;

tional type operatively engaged with a neu- -matic tire T- or other Threaded upon theextended portion of the inflatable ody.

stem 1 is a sleeve 2. The inner or connected portion of the sleeve 2isintersected by the diameter of the disk or partition 3 andthej marginal portions of the: disk or partition'3 and the annular member or washer 7 coact withthe gasket 8 preferably'of rubber which engages the outer end of-the stem 1, where-i by-anair-tight connection is providedwbe tween the stem 1 and the sleeve 2.]

A wall of the upper nipple 6 isprovided with a port -9 while the portion of said nipple 6 above the port ,9 is closed. The port 9 is in communication with the interior tition or, disk?) by gth'e'annular member 12 within the sleeve: 2, ,whe'rebythe tube 10 is effectively maintained in applied position.

- Extending axially of the tube 10- and entering therein throughv the outer end" thereof, is a stem'l l. The major portionof thestem 14: within the tube 10 is of amaxi-f mum diameter less than the diameter of the bore of the tube 10 and" the outer portion of" disk or partition 3 provided with a central s said"stem,.14' is provided with an enlarge,

ment 15 arranged within the, tube 10 and to which enlargement the open end portion of the tube 10 is secured.

i Theportion ofthe stem 14 outwardly of the enlargement 15 and-.exteriorly of the tube 10 is provided with peripheral threads with'which is'engaged the nut or'stop'lfi.

This extended or lnterior end portion of the stem 14 is disposed through the central opening defined by an annular member 17. The member 17 is secured to the outer end portion of a contractile member M-herein dis' closed as a coiled spring, and the opposite end of said member is secured to the annular member 12.. The contractile member M operates to constantly urge inwardly the annular member 17, whereby said member is constantly in engagement with the nut or stop 16.

The stem 14 is tubular with its bore open at the opposite endsthereof and the inner end of said stem, when at the limit of its inward movement, contacts. with a pad or elastic member 18 mounted upon the outer end of the nipple 6 so that when the stem 14 is in such position, the bore of the stem is closed.

Snugly fitting within the sleev 2 1s a bushing 19 which engages the annular member 12 and which surrounds the contractile member M, so that the sleeve and the-annular member 17 are free to have movement longitudinally of said bushing.

The outer end of the bushing 19 terminates inwardly of the outer end of the sleeve 2 and Said bushing is maintained 1n applied position by the cap plug 20 threaded within the outer end portion of the sleeve 2 and engaging the adjacent end ofthe bush ing 19.

The walls of the sleeve 2 and the bushing 19 adjacent the outer ends thereof are pros vided with the registering ports 21 which are normally closed by a rubber band 22 encircling the sleeve 2, and held in position by a spring.

The central portion of the cap plug 20 is provided with the pad or yieldable member 23 with which the outer end of the stem 14 is adapted-to engage to close the flow through said stem 14.

When my improved device is applied to a tire or other body under inflation, the pressure of the fluid within the tube 10 and against the head or enlargement 15 of the stem 14 will force said stem 14 and annular member 17 outwardly until the outer end of the stem 14 is in contact with the pador yieldable member 23, whereby flow through the stem 14 is closed.

When the pressure within the tire or other 7 body lowers, as the result of a puncture, pinch, or from any other cause, the stem 14 will move inwardly, whereupon the air or ciently to permit the inner end of the stem 14 to engage the pad or elastic member 18, resulting in the stem 14 being closed.

By adjusting the nut or stop 16 to different positions along the outer end portion of the stem 14, the pressure at which the innor end of the stem 14 will be set or closed may be regulated or varied as preferred.

The rubber band 22, in addition to facilitating the production of the audible signal or whistle, also operates to protect all of the working parts of my improved device from dust, mud, water and other foreign matter.

My improved device can also be employed to determine if the inflation of a tire or other body is above the danger point. When used for this purpose, the nut or stop 16 is.

adjusted on the. stem 14 in accordance with the pressure required and the device applied. If the signal does not operate, the air within the tire or other body is permitted to escape and the device again appliediand these operations are continued until the signal or whistle is caused to operate, whereupon will be at once understood that the pressure within the tire or other inflatable body is which it may be assembled and operated,

and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claim 1. A signal of the class described comprising a-tubular member adapted for com munication with a body adapted to contain a fluid under pressure, a tubular stem mounted therein for endwise movement, the bore of said stem being open at opposite ends, means carried by the tubular member for closing the bore of said stem when at the limit of its movement in either direction, and means for automatically moving said tubular stem in one direction upon decrease of pressure within: the body with: which the tubular member communicates, said tubu+ lar member being provided with a port adapted for communication with the atmosphere. i

2. A signal of the'classdescribed' comprising a tubular member adapted for communication with a body adapted to contain a fluid under pressure, a tubular stem mounted therein for endwise movement, the

bore of said member being open at opposit v i a ends, means for closing the bore of said stem when at the limit of its'movement in either direction, means for automatically moving said tubular stem in one direction upon decrease of pressure within the body with which the tubular member communia fluid under pressure, a tubular stem mounted thereinsfor endwise movement, the bore of said member being open at opposite ends, means for closing the bore of said stem when at the limit of its movement ineither direction, means for automatically moving said tubular stem in one direction upon decrease of pressure within the body with which the tubular member communicates, said tubular member being provided with a port adapted for communication with the atmosphere, a member intersecting the tubular member inwardly of the stem and provided with an opening, and oppositely directed nipples substantially defining'said.

prising a tubular member adapted for com;

openings, one of said nipples being disposed in a direction away from thebody to which the tubular member is applied and constantly in communication with the interior of the tubular member.

4. A signal of the class described com prising a tubular member adapted for communication with a body adaptedto contain a fluid under pressure, a tubular stem mounted therein for endwise movement, the bore of said member being open at opposite ends, means for closing the bore of said stem when at the limit of its movement in either direction, means for automatically moving said tubular 'stemin one direction upon decrease of pressure within the body with which the tubular member communicates,

said tubular member being provided with a port adapted for communication with the atmosphere, a member intersecting the tu-. bular member inwardly of the stem and provided with an opening, and oppositely di.

rected nipples substantially defining said signature.

the tubular member is applied and constantly in communication with the interior of the tubular member, and a member carried by said nipple with which the adjacent end of the stem contacts when at the limit of v itsmovement in a direction toward said nipple, whereby the bore of the stem is closed.

5. A signal of the class described comprising a tubular member adapted for communication with a body adapted to contain a fluid under pressure, a'tubular stem mounted therein for endwise movement, the'bore of said member being open at opposite ends, means for closing the bore of said stem when atthe'limit of its movement in either direction, means for automatically moving said .tubular stem in one direction upon decrease I of pressure within the body with which the tubular member communicates, said tubular member being provided with a port adapted surrounding an end portion of the stem and a contractile member engaged therewith,

said stembeingprovided with an enlargement with which said annular membercon- 'tacts.

6. 'A signal of the classdescribed communication with a body adapted to contain a fluid under pressure, a tubular stem mounted thereinifor endwise movement, the bore of said member being open at opposite ends, means for closing the bore of said stem I it A when at the limit ofits movement in either direction, means for automatically moving said tubular stem in one direction upon decrease of pressure within the body with which the tubular member communicates,

said tubular member being provided with a portadapted for communication with the atmosphere,and means for constantly urging the stem in one directioncomprismgan annular member surrounding an end por-' tion of the stem and a contractilemember engaged therewith, said stem being provided s with an enlargement with which said annular member contacts, said enlargement being adjustable lengthwise of the stem.

In testimony whereof I hereunto aflix my JOSEPH P. KELLEY. s 

